import React from 'react'
import { useNavigate } from 'react-router-dom'
export default function Header() {
    const navigate = useNavigate()
    const forward = () => {
        navigate(1)
    }
    const back = () => {
        navigate(-1)
    }

  return (
    <div className="col-xs-offset-2 col-xs-8">
        <div className="page-header"><h2>React Router Demo</h2></div>
        <button onClick={forward}>前进</button>
        <button onClick={back}>后退</button>
    </div>
  )
}
